@article{SEDP_1976-1977____A14_0,
     author = {Watanabe, K. and Zuily, C.},
     title = {Unicit\'e du probl\`eme de {Cauchy} pour des op\'erateurs elliptiques \`a caract\'eristiques de multiplicit\'e variable},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:15},
     pages = {1--9},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1976-1977},
     mrnumber = {477442},
     zbl = {0357.35028},
     language = {fr},
     url = {http://www.numdam.org/item/SEDP_1976-1977____A14_0/}
}